Transits of Venus and the Astronomical Unit

  title={Transits of Venus and the Astronomical Unit},
  author={Donald Teets},
  journal={Mathematics Magazine},
  pages={335 - 348}
  • D. Teets
  • Published 1 December 2003
  • Physics, Geology
  • Mathematics Magazine
Our story starts with the German astronomer Johannes Kepler in the early part of the seventeenth century. Though Kepler never witnessed a transit himself, his significance in the story is enormous for two reasons. First, according to Kepler's Third Law, as it is now known, the ratio of the square of a planet's orbital period to the cube of its mean distance from the Sun is the same for all planets. From this law, the relative scale of the solar system can be determined simply by observing the… 
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The first transits of Mercury and Venus ever observed were important for quite different reasons than were the transit of Venus observed in the eighteenth century. Good data of planetary orbits are
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Periodicity Domains and the Transit of Venus
It is shown that time cycles for transits are what they are because each σ is sufficiently close to a suitably simple rational number, which for Venus is 13/8, and which in turn induces a modulo 8 shuffling of successive transit years by a factor of 3.
Did Ibn Sina Observe the Transit of Venus of 1032 CE
The Persian polymath Abū ‘Alī Ibn Sīnā (980-1037 AD), known to early Western sources as Avicenna, records in one of his works, Compendium of the Almagest that ‘I say that I saw Venus as a spot on the
The Hetu'u Global Network: Measuring the Distance to the Sun Using the June 5th/6th Transit of Venus.
The goal of the international school group network was to inspire the next generation of scientists using the excitement and accessibility of a rare astronomical event, and connected hundreds of participating students representing a diverse, multi-cultural group with differing political, economic, and racial backgrounds.
Virtual global project management in eighteenth-century astronomy
This paper is the first paper to analyze the Venus transit projects from the project management perspective and demonstrates that virtual project management can be based on a common spirit and mutual trust to achieve project objectives, rather than the use of modern electronic devices to lower communication costs.
An exploratory case study of a regional screen production business developing fiscal sustainability, commercial responsibility, and competitive advantage in the market
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Venus in Transit
Preface Prologue Ch. 1. The Dreamer Ch. 2. Dawn of a New Cosmology Ch. 3. A Sight Never Seen Before Ch. 4. Venus Stripped Bare Solar and Stellar Parallax Ch. 5. The Dance of Two Planets Ch. 6. A Call
Orbital motion
This exercise explores the motion of a particle in a spherical Coulomb potential. The equations of motion are similar to those for a planet orbiting the sun: the radial acceleration varies inversely
Astronomy on the personal computer
1 Introduction.- 2 Coordinate Systems.- 3 Calculation of Rising and Setting Times.- 4 Cometary Orbits.- 5 Special Perturbations.- 6 Planetary Orbits.- 7 Physical Ephemerides of the Planets.- 8 The
The transit of Venus across the Sun
This article explains the significance of a transit of Venus and relates scientists' efforts at making precise observations of transits over the past 250 years.
The Transits of Venus: A Study of Eighteenth-Century Science
Book-Review - Measuring the Universe
Watchers of the Skies
XLVII. Second paper concerning the parallax of the Sun determined from the observations of the late transit of Venus, in which this subject is treated of more at length, and the quantity of the parallax more fully ascertained.
  • J. Short
  • Physics, History
    Philosophical Transactions of the Royal Society of London
  • 1763
In the last volume of the Memoirs of the Royal Academy at Paris for the year 1761, there is a Memoir by M. Pingré, who went to the island of Rodrigues, and observed the transit of Venus there; in
Dictionary of scientific biography